*2.2. Research Based on Historical Data and Real Objects*

The previous subsection includes literature resources from the last three to five years. However, all of them are based on simulations and different models (e.g., IEEE models). The authors indicate that there is a lack of present research of restoration issues based on real data, even if it is only input to further algorithms. This article is devoted to transmission lines restoration time; thus, this part is narrowed down only to transmission grids. Some interesting papers that concerns real object analysis using historical data can be found in the "SCOPUS" data base for key words "restoration" & "transmission lines" from the last three to five years:

